Liquid-mixing device



June 10, 1930. 5, -rs

LIQUID MIXING DEVICE Filed Nov. 23. 1927 2 Sheen -Sheet 1 June 10, 1930J. S.WATTS LIQUID MIXING DEVICE l neman 10, 1 930 I v a r 1 763 335]LUNITED sures PATENT OFFICE l i i w some s. warns, or waste crinsran,rnnusytvaum I i "LIQ D- MIXING- nnvIoE Application filed November-28,1927. Serial no. 235,365.

This invention relatesto liquid mixing The devicecomprises atwo-partcasing. devices and has for an objecta device which 10, "forminga substantially cylindrical will add to'a continuouslyflowing streamofchamber 11 communicatingwith a tangen- I one: fluid a definiteproportionate: amount tiallyarranged conduit 11 having an inlet ofanother fluid. 1 12and an outlet 13, the chamber being of 55 Accordingto the invention, a stream-o1: greater width than. the conduit. Withinone fluidis caused to flowfthrougha cham-, the chambera rotor 14 ismounted upon a her in which is mounted a rotor operable shaft 15 whichis journal-led in a hub exby the liquid. The liquid to: be added istending from one part .otthe casing 10. contained under pressure in atank '01 the Buckets 16 are mounted on the peri hery 60 {like andconnections including a liquid of the rotor and extend intothe condu1t11. fl

measuring device are provided for convey- The bucketsare slightlyless incross section ing liquid from the tank to the chamber. than the conduit.V v

The operation "of the liquid measuring de The casing'is provided with apassagevice is controlled byoperation of the rotor. way '17, one end' ofwhichgleads into the 65 Thus a predetermined. amount of rotationchamberll in the] eneral direction ofthe of the rotor causes a definitepredetermined flow of .liquid-theret rough. The other end amount of thesecond'liquid to be added to of the passageway17 leads .into a tubularthe liquid flowing throu h the chamber. chamber 18 inwhichis mounteda-cylindri- The ratio of theadded liquid to that flowing cal valvebushing 19. The casing is also 70 through the chamberremains constantdeprovided with a cylinder 20, the opposite spite flow variations. 1ends .of which communicate through con-- The deviceabove described is ofparticuduits 21 and ports 22 with the interior of larutility in treatinghydrocarbon products the valve bushing 19. Withinthe cylinder f such,for example,, as "gasoline with sul- 20 is provided a floating piston23. A-con- 7 phuric acid. Heretofore sulphuricacid has duit 24: isprovided leading from the chambeen addedto gasoline to betrea'ted moreor bar 18 at a point opposite the passageway 17. less by guess-work.It'has been necessary The assageway 17 communicates with the Y b to adda greater amount of sulphuric acid interior of the valve bushing througha port 3 thanwas really necessary in order to make a 25 and thepassageway 24: communicates sure that enough was added. With the withthe interior of the valve bushing above described device, the ratio ofsulthrough a port 26. t y phuric acid added to the gasoline is defi- Avalve 27 is rotatably mounted in the y nitely controllable and it hasbeen found bushing 19 and is provided with two chanthat with this devicea much smaller ratio nels' by means of which successive ports in 95 ofacid to gasolineaccomplishes the desired the valve bushing are put incommunication treatment of the gasoline. 1 with each other. A spring 28is. provided Other objects, novel features and advanfor keeping thevalve tightly seated in the t tages of this invention will be apparentbushing and-an adjusting screw 29 permits 1 40 from the followingspecification and accomvarying the pressure exerted by the springpanying drawings, wherein 28; The. valve 27 is coupled to the shaft 15"Figure 1 is a side elevation-of a device for rotation with the rotor14. As the valve embodying the invention. rotates communication isalternately estab- Figure 2 disclosesthe connections by lished betweeneach end of the cylinder and means of which the acid is supplied to thethe passageway 24 as well as between each a; device. end of the cylinderand the passageway 17 Figure 3 is a vertical section through the v Inoperation the casing 10 is connected device; and i in a pipe line asindicated in Fig. 4 and Figure 1 is a section on the line 4-4 of theconduit 24 is connected by suitable pipu ing with a tank 30 or thelikein which is lot 5 Fig. 3.

' I ao containedlthe liquid te vbe added to theliquid fiowiiigthroughthe pipeline. The-c0115 7 nections" betweenv the tank and the conduit24finay inchfdea pipe 31 controlled by a? valve 32 leading tothe. base}of an ain Cha mber'33. F'roih'the air chamber 33'a'pipe34; controlled/bythe valve. 35 leads to the" 0011-;

' duit 24. vD'rainpipeaf36 C Htr-aI dmy-uie;

valve 37 is c onnected .to the base of the'air' a filling pi 38eor'iti'oll'ed by a valve pipe'iO' controlled bya valve 4:1. T When thede'vi'ce is infOperation:fthe' valves;39:;ai1d} 37'; 7 are closedxandthe valves 41, 32. and; 35 are; I "u'fiicient pressiii e is; exertedoni: the

"' a 1iquid-- in theqgtank. 30 t r V, uidj' previously jeentajined inthe" left po 'tionki off the: cyliiidegZOisi r ed thifoughthe pas--sageway 17 int o] the ehamber 11. Rotation efrth'e. valve 90."puts1the'f tank 30 in 06m h the" left end of the] cylinder V f cylinder20in."

' communieation; with 'ithe passageway: 17'. "The piston '23 is thenforged; toi- 'the right; I f thus delivering-' inte the passageway :17the liquid previously j i'ntrddueed into the: right-5:

muin ieatibniwit 20 "and puts 1th velume ofliQuidiscOnVeyed rom-thertank 30- intothe ehamber ll upon each" rq-r I tationbf the "rotbr flcffAs the flow -of liq- A tional. sp eqljof the rotor varies {with" acons'equent va'ii'atipn in 'thefarriountf of the liq-j hid forcedintdthefiassageway; 17 per; :i oft'ime The iatidofthe addedwfluid toithat' 1flowing through-the" chamber-therefbre re- -fm ains"eonstant. J 'r i j i1; When :the device? is not: in" operation; it inayfb'e'a'dvisablenot'to leavefamou id'?the; -I, i ival ve and'in the icylii'dei the liquid-added; f to the liquid flowing-'- th i'ough the-pipe:line; 7 I Thisiis especially true when" the added; liq-e .uid'is acid;"If the device is allowed to stand I 1 fidle" foi" "some-time with; iaeidarbund the ,2, e valve and the cylinder,- th'e a'eid'mayieause .7:01- athe' -va'IVe' to ;be ;ome;t1ght iii itsghushing;

-{The acid ma-y 'be nremovedd by elosingjhevalve 32' and opening thevalve 37; 3 Since the pipe36 opens into.-the-.;atmospherethere will be apressure forci'iigliquid fromthe chamber, out through the pipe 36. TheIi'q the pistoh' t0 beeo'nn-e" ti ht iii-it's cylinder 'uid;ilrfleiwingout this waywill flush: out

1: the acyliriden" and chamber" arolind itheivalvel and leavethe-jeihfromthe pipe :line* in its 'p1ace,- t hus remoyingthe acidandleaving miss-,asa f V which communicates with the chamber l8 chamber 33;The. tank 30 is p Vided-Wit-IL a the lo'bpis'a 'sighf S "4:S; SufficientIubrb j and 1S also provided with: an air pressure;

Uses rotation 9f" the? i s valve-in{cher'jabsitibn v 7:; j shown in:Fig; 4", {liqliid .flow's'rfrom the tank f30 i-ntothe rightend oftheeylinder 20, thus forcing the *pisten 23 to thefileft. The liqyappeai'sy-i the sightif'glass chamber; thejmgi-qpf the tw i togetherby'th above said condli iti'fahd eemmunicatiri'g at fe l fi e d c am er a'gasol irie iomzihei i ine "id-its rice;

Corrosi'oii 0 f theiwbi kiiig'parts by'the aeid is thus avoidedff Meansare p revidedifer lilbripatingiithe valve 27. This;emeanst comprises aloop J42 0f threeqvay valves- 4:6 51M147 respectively.

Also contained ii -and forming a part of catil ig qiliis intr'oucedfinto theldop to fill to; the"; eentaetihg sliitfaeesj 01 the theTambjliit e fi left. Whenjthe aci'dTin turningthefvalvegfigli thlswaythe lubri eating ,bil-imay}f eplenished whenever" necessary. A11; Tadju tingfserew 49 7 is'fl pr'o vided for vary t e smi e of! the piston.23 and therebyvari ing th me of liquid 1 form. pr pQrtio'ns; which" pppgrtions-triay be variedas desired 'f The am u c f liquidadded-fbrgreaehgrotatign oif the-rbter; l ifis 1 i the same "whateverthe speed of the fretoif-g Astthespeeld ofthe,:rgtoi 'is direetlyfdepend ent upon the flow; ei liquid jjthreugh the I qu sb might 07f theinventio clef fine claim... V

liclaimz} I V s v In ai'devicejofftheflchai acmr described, a conduit; a-'s1'1bs ta'ntial1 y I cii cular chamber s V V eingnojf greater V 3width than' said 7 eonduit, a' projection ex tending fro mijone i wa lliof said chamber,- a' k I shaft "notatably. .miqunted insaid' prjojection,

a rote: carried said shaftf and arranged iw him a d(cham e ,yam memeon'the I 1 l periphe ry of said i pto rxt of extend; into saidc'pnd'uitQs saidgvanesgbei g.fl siightly 1 less; in cross sections thari said 'ce d'liit, valved? aches ppfeximatelyflthe; i "'levellofr'tlfie-rvalve 27 1 mg, drained out 1 1; by turning the; valve 7 iidadditienalvoil' introduced-through? the m1 new properlyrj shrew! also" an n antet 2 8170fsclelirse ap areiltjg that vano s E' chamber insaidprojection coaxial with said shaft, a cylinder provided in saidprojection, a. piston reciprocable in said cylinder passages in saidprojection leadin to sai valve chamber from opposite en s of thecylinder; a discharge passage in said projection leading from said valvechamber to 7 said conduitpan inlet passsage leading to said valvechamber, a valve rotatably m mountediingsaid valve chamber foralternately connecting the inlet and dischar e passages to the passagesleading to the engs of the cylinder, and-a driving connection betweensaidshaft and said va lve. p In testimony whereof, I have signed my iname to this specification.

JOHN s. WAflTS

